Determine the center and radius of the circle described by the equation. (x+1)2+(y−3)2=25
center = ?

Need this asap if anyone can i would be very grateful. if you could show workings that would really

How can the correlation in the scatter plot graph below best be described? positive correlation negative correlation both positive and negative no correlation

1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis. 3- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in part b?